LeEco Le S3 (X522) vs Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB)

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Side by side comparison between LeEco Le S3 vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?

1/16/2021 4:45 PM, updated: 5/19/2025 11:26 AM

Compare Samsung Galaxy S21 Ultra X LeEco Le S3 (X522) 03Points

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

16
MP

8mp

3GB
RAM

Octa-core

3000
mAh

(Non removable)

36Points Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB) Compare LeEco Le S3 X

Specifications Compare Models Pictures

6.8"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

3 Advantages LeEco Le S3 (X522)	vs	36 Advantages Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB)
+153 grams (5.36 ounces)48% Lighter	vs	227 grams (7.95 ounces)
+7.5 millimeters (0.3 inches)19% Thinner	vs	8.9 millimeters (0.35 inches)
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
1.8GHz 64bit Octa-core	vs	+2.9GHz 64bit Octa-core (5nm)48% More powerful processor, you can open your applications faster
3GB LPDDR3	vs	+12GB LPDDR53 times More RAM memory. Typically more responsive and better for multitasking.
32GB (22GB available)	vs	+128GB (101GB available)4 times More internal storage for applications and files
TFT IPS LCD	vs	+Dynamic AMOLEDAdvantage Dynamic AMOLED display is brighter and more vivid
Not supported	vs	+HDR10+Advantage The HDR10+ display provides vibrant colors and more details
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1080x1920 pixels	vs	+1440x3200 pixels122% Higher resolution screen
401 PPI	vs	+516 PPI29% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.5"	vs	+6.8"24% Larger screen
(back) 16MP	vs	+(quad camera) 108MP + 10MP + 10MP + 12MP8 times Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
EIS: Digital stabilization	vs	+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
HDR photo only main camera	vs	+HDR photo/video on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
(front) 8MP	vs	+(front) 40MP4 times Higher resolution secondary camera to take pictures and selfies
4K UHD (3840x2160)	vs	+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera
(front) HD (1280x720)	vs	+(front) 4K UHD (3840x2160)8 times More image quality for recording videos with the secondary camera
Android 6.0 Marshmallow	vs	+Android 15Advantage Android 15 is newer and safer
4G LTE-A	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE-A) 300 Mbps	vs	+(5G SA/NSA) 5000 Mbps16 times Faster for surfing the internet and download files
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
Not supported	vs	+UWB (Ultra Wideband)Advantage Sensors help you use the device
3000 mAh	vs	+5000 mAh67% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
18W	vs	+25W39% More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
Not supported	vs	+Qi wireless charging (Qi/PMA)Advantage Wireless charging is another way to charge the battery.
2 slots (Dual-SIM)	vs	+2 slots (Dual-SIM) + e-SIM (Eletronic)Advantage You can have more mobile carriers/operators on the same device.
Mono sound (not stereo)	vs	+Stereo soundAdvantage Better sound quality for listening to music or clearer hands-free calls
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
802.11 a/b/g/n/ac [wifi5]	vs	+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
4.1 + A2DP	vs	+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
USB 2.0 Type-C reversible connector	vs	+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

19 Common items in both devices

Aluminum body, glass front / Aluminum frame, glass front/back

16 million

PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras

Capacitive

Multitouch

Accelerometer

Ambient light sensor

+12 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Change model		Choose the model
Model	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Other model names	LeEco S3 X522 AM, Letv LEX522, LeEco X522 3GB RAM	Galaxy S21 Ultra 5G (SM-G998B/Dual-SIM)
Country or region available	Canada, USA	(Global, International)
Brand	LeEco	Samsung
Release date	11/1/2016	1/29/2021, Announced: 1/14/2021
Depth	7.5 millimeters (0.3 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	74.2 x 151.1 millimeters (2.92 x 5.95 in)	75.6 x 165.1 millimeters (2.98 x 6.5 in)
Weight	153 grams (5.36 ounces)	227 grams (7.95 ounces)
Build, materials	Aluminum body, glass front	Aluminum frame, glass front/back
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Display type	TFT IPS LCD	Dynamic AMOLED
Screen size	5.5" inches	6.8" inches
Screen-to-body ratio	~74.4% (screen-to-body ratio)	~89.4% (screen-to-body ratio)
Display resolution	1080x1920 pixels (16:9)	1440x3200 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	401 PPI	516 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass Victus
Refresh rate	60Hz	120Hz
Display features	Not supported	1500nits[peak] HDR10+ Always-On Display
🤖 Operating System
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
System version	Android 6.0 Marshmallow	Android 11
Firmware update	feature not registered	Android 15
User Interface	eUI 5.8	One UI 3.1 / 4.1 / 5.1 / 6.0 / 7.0
⚙️ Processor
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Chipset	64bit: Qualcomm Snapdragon 652 MSM8976 (28nm)	64bit: Samsung Exynos 2100 (5nm)
CPU	Octa-core, 2 processors: 4x 1.8GHz ARM Cortex-A72 (Quad-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core)	Octa-core, 3 processors: 1x 2.9GHz ARM Cortex-X1 (Single-core) 3x 2.8GHz ARM Cortex-A78 (Triple-core) 4x 2.2GHz ARM Cortex-A55 (Quad-core)
GPU graphical controller	Qualcomm Adreno 510 600Mhz	ARM Mali-G78 MP14 (854MHz)
Performance (benchmark)	feature not registered	AnTuTu: 657150 (v8), 727634 (v9) Geekbench: 3457 (v5.2) GFXBench: 51fps (ES 3.1 onscreen)
💽 Memory and storage
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
RAM memory	3GB LPDDR3	12GB LPDDR5
Internal storage	32GB (22GB available)	128GB (101GB available) UFS 3.1
External storage	Not supported	Not supported
📶 Mobile networks
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM
Maximum Download / Upload	300/50 Mbps	5000/1920 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G, 5G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17)	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE
Primary 5G network	Not supported	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
📷 Camera
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Back camera (main camera)	16 megapixels	(quad camera) 108 megapixels 10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom 10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video
Main camera resolution	4608x3456 pixels	12000x9000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	8K UHD (7680x4320) 24 fps
Flash	Dual-LED flash	LED flash
Focal aperture	feature not registered	f/1.8 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/1.33" inches
Pixel size	feature not registered	1.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus on both cameras
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Digital and optical zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo only main camera	HDR photo/video on both cameras
Camera extras	1080p@30fps 720p@120fps	4K@60fps 1080p@240fps 720p@960fps
📸 Front camera
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Front camera (secondary)	8 megapixels	40 megapixels
Front camera resolution	3264x2448 pixels	7296x5472 pixels
Video recording (secondary)	HD (1280x720)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	f/2.2 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.7µm pixel
🔉 Sound and multimedia
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Loudspeaker	Mono sound (not stereo) Dolby Atmos	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG
Active noise cancellation	2 microphones or more	3 microphones
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
USB	USB 2.0 Type-C reversible connector	USB 3.2 Type-C, USB OTG On-The-Go
Audio output	Type-C reversible connector	Type-C reversible connector
TV output	Not supported	USB Type-C (reversible)
Bluetooth	4.1 + A2DP	5.2 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi hotspot	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Hall effect Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband)
Vibrating alert	Supported	Supported
🔋 Battery
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	5000 mAh
Charger, watts	18W Wired fast charging Quick Charge 3	25W Wired fast charging USB Power Delivery 3.0
Inductive / wireless charging	Not supported	15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Gray, Gold, Rose Gold	• Colors: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support
☢️ Radiation rate
	LeEco Le S3 (X522)	Galaxy S21 Ultra (SM-G998B/DS 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.24W/kg (head), 0.72W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.714W/kg (head), 1.58W/kg (body)